JP2006236332A - Semiconductor device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a device compliant with new use by using the capability of data exchange, in a noncontact manner by a semiconductor device, such as an RFID, thus reducing the burden of the user and improving the convenience. <P>SOLUTION: The semiconductor device has an arithmetic circuit, comprising a transistor, a conductive layer functioning as an antenna, a detection part having a means of detecting physical quantity or chemical quantity, and a storage part for storing data detected by the detection part, wherein the arithmetic circuit, the conductive layer, the detection part and the storage part are covered with a protective layer. Furthermore, by installing such a semiconductor device to humans, plants and animals, and the like, various kinds of information are monitored to be managed in a noncontact manner. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a semiconductor device capable of transmitting and receiving various information without contact.

  2. Description of the Related Art In recent years, attention has been focused on an individual recognition technique in which an ID (individual identification number) is given to an individual object to clarify information such as a history of the object and to be useful for production and management. Among them, development of semiconductor devices capable of transmitting and receiving data without contact is underway. As such a semiconductor device, an RFID tag (Radio Frequency Identification) (ID tag, IC tag, IC chip, RF tag (Radio Frequency), wireless tag, electronic tag, also referred to as a wireless chip) is used in an enterprise, a market, or the like. It has begun to be introduced.

  In general, an RFID tag includes an integrated circuit portion including a transistor and an antenna, and can exchange information with an external device (reader / writer) via an electromagnetic wave. Recently, attempts have been made to monitor and manage products by providing RFID tags on various products. For example, a product management system has been proposed in which an RFID tag is attached to a product, and product management can be performed automatically and easily without being limited to inventory management such as the number of products in stock and stock status (Patent Document 1). ). In order to enhance the crime prevention effect, use of an RFID tag is proposed for a security device and a security system (Patent Document 2). In addition, a method for preventing unauthorized use due to exploitation by mounting RFID tags on bills, securities, etc. has been proposed (Patent Document 3). Thus, it has been proposed that the RFID tag is used in various fields.

JP 2004-359363 A JP 2003-303379 A JP 2001-260580 A

  The present invention provides a device suitable for a new application by utilizing the point of contactless data transmission / reception in a semiconductor device such as an RFID tag, thereby reducing the burden on the user and improving convenience. The purpose is to let you.

  In order to achieve the above object, the present invention takes the following measures.

  A semiconductor device of the present invention includes an arithmetic processing circuit including a transistor, a conductive layer functioning as an antenna, and a detection unit having means for detecting a physical quantity or a chemical quantity. The arithmetic processing circuit, the conductive layer, and the detection The part is covered with a protective layer. The physical quantity in the present invention refers to temperature, pressure, flow rate, light, magnetism, sound wave, vibration, acceleration, humidity, etc., and the chemical quantity refers to chemical substances such as gas components such as gas and liquid components such as ions. Etc. In addition, the chemical amount includes organic compounds such as specific biological substances (for example, blood glucose level contained in blood) contained in blood, sweat, urine and the like.

  As another configuration of the semiconductor device of the present invention, an arithmetic processing circuit including a transistor, a conductive layer functioning as an antenna, a detection unit having a means for detecting a physical quantity or a chemical quantity, and a detection unit And a storage unit for storing data, and the arithmetic processing circuit, the conductive layer, the detection unit, and the storage unit are covered with a protective layer.

  As another structure of the semiconductor device of the present invention, an element including a transistor provided over a substrate, a detection element electrically connected to the transistor and provided over the element, a conductive layer functioning as an antenna, The substrate, the element, the detection element, and the antenna are covered with a protective layer.

  As another structure of the semiconductor device of the present invention, an element having at least a first transistor, a second transistor, and a third transistor provided over a substrate is electrically connected to the first transistor; A detection element provided on the element, a memory element electrically connected to the second transistor and provided on the element, and an antenna electrically connected to the third transistor and provided on the element And a conductive layer functioning as a substrate, an element, a detection element, a memory element, and an antenna is covered with a protective layer.

  As another structure of the semiconductor device of the present invention, an element having at least a first transistor, a second transistor, and a third transistor provided over a substrate is electrically connected to the first transistor; A detection element provided on the element, a memory element electrically connected to the second transistor and provided on the element, and an antenna electrically connected to the third transistor and provided on the element The storage element has a stacked structure of a first conductive layer, an organic compound layer, and a second conductive layer formed on the element, and includes a substrate, an element, a detection element, and a storage element. A conductive layer functioning as an element and an antenna is covered with a protective layer.

  In the above structure, the detection element can be provided in a stacked structure including the first layer, the second layer, and the third layer. The detection element may have a structure in which the first layer and the second layer are arranged in parallel in the same layer, and the second layer is arranged in parallel between the first layer and the third layer. . In this case, the second layer may have a structure provided so as to cover the first layer and the third layer.

  In the above structure, a glass substrate or a flexible substrate can be used as the substrate.

  In the above structure, the semiconductor device of the present invention includes silicon oxide, silicon nitride, silicon oxynitride, diamond-like carbon (DLC), or carbon nitride as the protective layer.

  By using the present invention, reduction in size and weight of a semiconductor device capable of detecting various physical quantities and chemical quantities can be achieved. In addition, since the surface of the semiconductor device is covered with a protective layer such as diamond-like carbon (DLC), the semiconductor device of the present invention is non-invasive even when embedded in a human or animal body. It is possible to keep. Further, since the semiconductor device of the present invention can be provided so as to have flexibility, it can also be provided on a target having a curved surface.

  In addition, the semiconductor device of the present invention includes a detection element and a detection control circuit that converts data detected by the detection element into an electric signal or the like, thereby detecting various physical quantities and chemical quantities, and via a reader / writer. The data can be displayed without contact.

  As described above, the semiconductor device of the present invention can reduce the burden on the user and improve convenience even when the semiconductor device is provided for a human being or a plant or animal.

  Embodiments of the present invention will be described below with reference to the drawings. However, the present invention is not limited to the following description, and it is easily understood by those skilled in the art that modes and details can be variously changed without departing from the spirit and scope of the present invention. Therefore, the present invention should not be construed as being limited to the description of the embodiments below. Note that in the structures of the present invention described below, the same reference numerals may be used in common in different drawings.

(Embodiment 1)
In this embodiment, an example of a semiconductor device of the present invention will be described with reference to drawings.

  A semiconductor device 100 described in this embodiment includes an arithmetic processing circuit 101, a detection unit 102, a storage unit 103, an antenna 104, and the like, and is connected to an external device (eg, a reader / writer) through the antenna 104 in a non-contact manner. 112) and a function of communicating data (FIG. 1).

  The arithmetic processing circuit 101 exchanges data with the detection unit 102 or the storage unit 103 in accordance with a signal input from the reader / writer 112. For example, extraction of data detected by the detection unit 102, writing of the data into the storage unit 103, reading of data written in the storage unit 103, and the like are performed. Then, arithmetic processing is performed based on the data detected by the detection unit 102 and the result is output to the reader / writer 112.

  The detection unit 102 can detect temperature, pressure, flow rate, light, magnetism, sound wave, acceleration, humidity, gas component, liquid component, and other characteristics by physical or chemical means. The detection unit 102 includes a detection element 105 that detects a physical quantity or a chemical quantity, and a detection control circuit 106 that converts the physical quantity or the chemical quantity detected by the detection element 105 into an appropriate signal such as an electrical signal. Yes. The detection element 105 can be formed of a resistance element, a photoelectric conversion element, a thermoelectromotive force element, a transistor, a thermistor, a diode, or the like. A plurality of detection units 102 may be provided. In this case, a plurality of physical quantities or chemical quantities can be detected simultaneously.

  The physical quantity here refers to temperature, pressure, flow rate, light, magnetism, sound wave, acceleration, humidity, etc., and the chemical quantity refers to chemical substances such as gas components such as gas and liquid components such as ions. Point to. In addition, the chemical amount includes organic compounds such as specific biological substances (for example, blood glucose level contained in blood) contained in blood, sweat, urine and the like. In particular, when a chemical amount is to be detected, a specific substance is necessarily selectively detected. Therefore, a substance that selectively reacts with a substance to be detected is provided in advance in the detection element 105. . For example, in the case of detecting a biological substance, it is preferable that an enzyme, an antibody molecule, a microbial cell, or the like that selectively reacts with the biological substance that the detection element 105 wants to detect is immobilized on a polymer or the like.

  The storage unit 103 can store the data detected by the detection unit 102, and the storage element 107 that stores the data and the control circuit 108 that controls the writing and reading of data to and from the storage element 107. And have. Note that the number of storage units 103 is not limited to one, and a plurality of storage units 103 may be used, and an SRAM, a flash memory, a ROM, an FeRAM, an organic memory, or the like can be used. Moreover, these can also be provided in combination. Note that an organic memory is a memory in which a layer having an organic compound is interposed between a pair of electrodes. The organic memory can simultaneously realize downsizing, thinning, and large capacity at a low cost. Therefore, by providing the storage unit 103 with an organic memory, the semiconductor device can be reduced in size, weight, and cost.

  Next, data exchange between the reader / writer 112 and the semiconductor device 100 will be briefly described. First, a signal transmitted as an electromagnetic wave from the reader / writer 112 is converted into an AC electrical signal by the antenna 104. In the power supply circuit 109, a power supply voltage is generated using an AC electrical signal, and the power supply voltage is supplied to each circuit. The demodulation circuit 110 demodulates an alternating electrical signal and supplies it to the arithmetic processing circuit 101. In the arithmetic processing circuit 101, various arithmetic processes are performed according to the input signals, and instructions are given to the detection unit 102, the storage unit 103, and the like to exchange data. Then, the data detected by the detection unit 102 is sent from the arithmetic processing circuit 101 to the modulation circuit 111, and load modulation is applied to the antenna 104 from the modulation circuit 111 according to the data. The reader / writer 112 receives the load modulation applied to the antenna 104 as an electromagnetic wave, and as a result, can read the data.

  Note that the semiconductor device 100 described in this embodiment mode may be a type in which supply of power supply voltage to each circuit is performed using electromagnetic waves without providing a power supply (battery 113), or the battery 113 is provided with the battery 113. A power supply voltage may be supplied to each circuit, or a battery 113 may be provided and a power supply voltage may be supplied to each circuit by electromagnetic waves and the battery 113. When the semiconductor device is not provided with a battery, it is not necessary to replace the battery, so that the cost of the semiconductor device can be reduced.

  Next, an example of the top structure of the semiconductor device of the present invention will be described with reference to FIG. A semiconductor device 100 illustrated in FIG. 2 includes a thin film integrated circuit 240 provided with a plurality of elements constituting a circuit such as the arithmetic processing circuit 101 and a conductive layer 241 functioning as the antenna 104. The conductive layer 241 functioning as the antenna 104 is electrically connected to the thin film integrated circuit 240. Note that although an example in which the conductive layer 241 functioning as the antenna 104 is provided in a coil shape and an electromagnetic induction method or an electromagnetic coupling method is applied is described in this embodiment mode, the semiconductor device of the present invention is not limited thereto, and is a microwave method. It is also possible to apply. In the case of a microwave method, the shape of the conductive layer 241 functioning as the antenna 104 may be determined as appropriate depending on the wavelength of the electromagnetic wave used. Further, by providing the conductive layer 241 functioning as the antenna 104 and the thin film integrated circuit 240 so as to overlap with each other, the semiconductor device can be reduced in size.

  Next, a cross-sectional structure of the semiconductor device 100 including the arithmetic processing circuit 101, the detection unit 102, the storage unit 103, and the antenna 104 will be described with reference to FIGS. Here, the detection unit 102 includes a detection element 105 and a detection control circuit 106, and the storage unit 103 includes a storage element 107 and a control circuit 108.

  The semiconductor device illustrated in FIG. 3A includes an element 201 included in the arithmetic processing circuit 101, an element 202 included in the detection control circuit 106, an element 203 that controls the control circuit 108, and a conductive layer 204 that functions as the antenna 104. is doing. In FIG. 3A, the detection element 105 corresponds to a stacked body of a first layer 205, a second layer 206, and a third layer 207, and is electrically connected to the element 202 included in the detection control circuit 106. Has been. The memory element 107 corresponds to a stacked body of the first conductive layer 208, the layer 209 containing an organic compound, and the second conductive layer 210, and is electrically connected to the element 203 included in the control circuit 108.

  The elements 201, 202, and 203 include a transistor, a capacitor element, a resistance element, and the like. In the structure illustrated in the drawing, a plurality of transistors are illustrated as the elements 201, 202, and 203. The transistor may be a thin film transistor (TFT) or a field effect transistor (FET) in which a channel layer is provided on a semiconductor substrate such as Si. In addition, the conductive layer 204 functioning as an antenna is electrically connected to a transistor or the like included in the element 201.

  As the first conductive layer 208 or the second conductive layer 210, gold (Au), silver (Ag), platinum (Pt), nickel (Ni), tungsten (W), chromium (Cr), molybdenum (Mo) , Iron (Fe), cobalt (Co), copper (Cu), palladium (Pd), carbon (C), aluminum (Al), manganese (Mn), titanium (Ti), tantalum (Ta), etc. A single layer or a stacked structure including one kind of element or an alloy containing a plurality of such elements can be used. For example, the alloy includes an alloy containing Al and Ti. In addition, other light-transmitting oxide conductive materials such as indium tin oxide (ITO), zinc oxide (ZnO), indium zinc oxide (IZO), and zinc oxide to which gallium is added (GZO) can be used. It is. You may use what was formed using the target which mixed 2-20 wt% zinc oxide (ZnO) further in the indium oxide containing a silicon oxide.

  As the layer 209 containing an organic compound, 4,4′-bis [N- (1-naphthyl) -N-phenyl-amino] -biphenyl (abbreviation: α-NPD), 4,4′-bis [N- ( Single-layer or laminated structure of low-molecular compounds such as 3-methylphenyl) -N-phenyl-amino] -biphenyl (abbreviation: TPD), poly (p-phenylene vinylene) (PPV), [methoxy-5- (2- Ethyl) hexyloxy] -p-phenylene vinylene (MEH-PPV), poly (9,9-dialkylfluorene) (PAF), poly (9-vinylcarbazole) (PVK), polypyrroles, polythiophenes, polyacetylenes, polypyrenes A single-layer structure or a stacked structure of polymer compounds such as polycarbazoles can be used. Moreover, in addition to the layer which consists of a low molecular compound or a high molecular compound, the layer formed by mixing the said low molecular or high molecular compound and an inorganic compound can also be laminated | stacked and provided. 3A illustrates the case where the memory element 107 is a passive matrix type, an active matrix type may be used.

  Although the conductive layer 204 functioning as an antenna is provided in the same layer as the source wiring and drain wiring of the transistor, the gate electrode of the transistor, a pair of conductive layers that form the memory element 107, You may provide in the same layer as the conductive layer which comprises a detection element. In this manner, by providing the conductive layer functioning as an antenna in the same layer as the conductive layer included in another element, it is not necessary to provide a step of forming a conductive layer functioning as an antenna, and the antenna functions as an antenna. The step of forming a conductive layer and the step of forming a conductive layer of another element can be performed simultaneously. Therefore, the manufacturing process can be simplified, and the manufacturing cost can be reduced and the yield can be improved. In the case where a conductive layer functioning as an antenna is provided separately from a conductive layer included in another element, the manufacturing process is simplified and the material is formed by using a printing method such as screen printing or a droplet discharge method. The utilization efficiency can be improved. Note that although an example in which the conductive layer 204 functioning as an antenna is provided in the same layer as a conductive layer included in another element is described in this embodiment, a conductive layer functioning as an antenna is formed separately and a transistor is formed in a later step. It is also possible to provide them so that they are electrically connected.

  The structure of the detection element 105 depends on a physical quantity or chemical quantity to be detected. That is, the operation of the detection element 105 differs depending on the structure. For example, when the first layer 205 included in the detection element 105 is a P-type semiconductor layer, the second layer 206 is an I-type semiconductor layer, and the third layer 207 is an N-type semiconductor layer, the detection element 105 corresponds to a PIN diode. To do. The PIN diode has a property that an electric current flows when irradiated with light, and can detect the light.

  Note that not only a PIN diode but also other elements such as a PN diode, a Schottky diode, an avalanche diode, a phototransistor, a phototriac, and a photothyristor may be used as an element for detecting light.

  When the first layer 205 included in the detection element 105 is a conductive layer, the second layer 206 is a compound semiconductor layer, and the third layer 207 is a conductive layer, the detection element 105 can detect ultraviolet rays. This is because the detection element 105 has a property that current flows when irradiated with ultraviolet rays. The conductive layers used for the first layer 205 and the third layer 207 are made of a known conductive material, and the compound semiconductor layers used for the second layer 206 are aluminum (Al), gallium (Ga), and indium (In ) And a semiconductor containing nitrogen. The crystal structure of the compound semiconductor layer may be either amorphous or microcrystalline.

  Further, when the first layer 205 included in the detection element 105 is a conductive layer, the second layer 206 is a piezoelectric layer, and the third layer 207 is a conductive layer, the detection element 105 can detect a change in pressure. it can. This is because the capacitance value of the detection element 105 changes when the pressure changes, and the change in pressure can be detected by reading the changed capacitance value. The piezoelectric layer is made of a material containing lead, titanium, zirconium and oxygen, or a material containing lead, strontium, titanium, zirconium and oxygen.

  Note that in the case where the first layer 205 of the detection element 105 is provided using a conductive layer and is formed using the same material as the conductive layer 204 that functions as an antenna, the first layer 205 and a conductive layer that functions as an antenna are used. 204 can be formed in the same layer using the same material, whereby the manufacturing process can be simplified. In the case where the first layer 205 is provided using a conductive layer and is provided using the same material as the first conductive layer 208, the first layer 205 and the first conductive layer 208 are formed using the same material. The formation process can be simplified by forming them in the same layer. The first layer 205, the first conductive layer 208, and the conductive layer 204 functioning as an antenna can be provided using the same material in the same layer.

  Next, a cross-sectional structure of the semiconductor device 100 of the present invention, which is different from the above structure, will be described with reference to FIG. A semiconductor device illustrated in FIG. 3B includes a detection element 105, a memory element 107, elements 201, 202, and 203, and a conductive layer 204. Here, the source wiring or the drain wiring of the transistor is used as the first conductive layer 208 of the memory element 107. Needless to say, as shown in FIG. 3A, a second wiring is separately provided over the source wiring and the drain wiring through an insulating film. One conductive layer may be provided. The conductive layer 204 functioning as the antenna 104 is provided in the same layer as the conductive layer that forms the gate electrode. However, as described above, the conductive layer 204 forms the same layer as the source and drain wirings of the transistor and the memory element 107. The pair of conductive layers may be provided in the same layer as the conductive layer constituting the detection element. Needless to say, it may be formed using a printing method or a droplet discharge method, or may be provided by being attached to a substrate over which the transistor is formed after being provided over a substrate over which the transistor is formed. 3B illustrates the case where the memory element 107 is a passive matrix type, an active matrix type may be used.

  The detection element 105 includes a conductive layer 211, a wet / dry layer 212, and a conductive layer 213. The dry / wet layer 212 includes a hygroscopic organic material, and specifically includes polyimide, acrylic, and the like. In addition, as the wet and dry layer 212, a cellulose-based hydrophilic polymer, an ammonium salt, a material based on a sulfonic acid group, a porous ceramic, lithium chloride, or the like can be used. When water enters the moisture-sensitive layer 212, the dielectric constant of the dry-humidity layer 212 changes according to the amount of moisture that enters, and as a result, the capacitance value of the detection element 105 changes. Thus, humidity can be detected by reading the capacitance value that changes in accordance with the surrounding environment. In addition, in the detection element 105 illustrated in FIG. 3A, the third layer 207 is provided as a thin conductive layer, so that the wet and dry layer absorbs or releases moisture through the conductive layer. It is also possible to have a structure sandwiched between.

  Note that in the case where the conductive layer 211 or the conductive layer 213 of the detection element 105 is provided using the same material as the conductive layer 204 that functions as an antenna, the conductive film 211 or the conductive film 213 and the conductive layer 204 that functions as an antenna are formed of the same material. By forming the same layer using a material, the manufacturing process can be simplified. In the case where the conductive layer 211 or the conductive layer 213 of the detection element 105 is provided using the same material as the first conductive layer 208, the first layer 205 and the first conductive layer 208 are formed using the same material. By forming the same layer, the manufacturing process can be simplified. Alternatively, the conductive layer 211, the conductive layer 213, the first conductive layer 208, and the conductive layer 204 functioning as an antenna can be provided in the same layer using the same material.

  Next, a cross-sectional structure of the semiconductor device 100 which is different from the above structure will be described with reference to FIG. A semiconductor device illustrated in FIG. 4A includes a detection element 105, a memory element 107, elements 201, 202, and 203, and a conductive layer 204. Here, an insulating film is provided over the source wiring and the drain wiring of the transistor, and the first layer of the detection element 105 and the first conductive layer 208 of the memory element 107 are formed over the insulating film. It is also possible to provide the same layer as the drain wiring. 4A illustrates the case where the memory element 107 is an active matrix type, a passive matrix type may be used.

  The detection element 105 includes a conductive layer 217, a layer 218 containing an organic compound, and a conductive layer 219. The detection element 105 changes its resistance value when the ambient temperature changes. In this way, the temperature is detected by reading the resistance value that changes according to the surrounding environment.

  Note that in the above structure, an element including the layer 218 containing an organic compound is used as an element for detecting temperature, but the present invention is not limited to this structure. A transistor may be used as an element for detecting temperature. When the ambient temperature changes, the resistance value between the source and the drain of the transistor changes. The temperature can be detected by reading such a change in resistance value.

  Note that in the case where the conductive layer 217 of the detection element 105 is provided using the same material as the conductive layer 204 that functions as an antenna, the first layer 205 and the conductive layer 204 that functions as an antenna are formed using the same material. By forming the layer, the manufacturing process can be simplified. In the case where the conductive layer 217 of the detection element 105 is provided using the same material as the first conductive layer 208, the first layer 205 and the first conductive layer 208 are formed using the same material in the same layer. By forming, the manufacturing process can be simplified. Alternatively, the conductive layer 217, the first conductive layer 208, and the conductive layer 204 functioning as an antenna can be provided in the same layer using the same material. In the case where the layer 218 containing the organic compound of the detection element 105 is provided using the same material as the layer 209 containing the organic compound of the memory element 107, the layer 218 containing the organic compound is the same material as the layer 209 containing the organic compound. The formation process can be simplified by forming them in the same layer. Note that in this case, the conductive layer 219 of the detection element 105 and the second conductive layer 210 of the memory element 107 may be formed using the same material.

  Next, a cross-sectional structure of the semiconductor device 100 which is different from the above structure will be described with reference to FIG. A semiconductor device illustrated in FIG. 4B includes a detection element 105, a memory element 107, elements 201, 202, and 203, and a conductive layer 204. Here, the source wiring or the drain wiring of the transistor is used as the first conductive layer of the memory element 107, but of course, as shown in FIG. 4A, the first wiring is separately provided over the source wiring and the drain wiring through an insulating film. A conductive layer may be provided. The conductive layer 204 functioning as the antenna 104 is provided in the same layer as the first conductive layer that forms the memory element 107 and the first layer that forms the detection element, but is provided in the other layers described above. Is also possible.

  The detection element 105 includes a conductive layer 214 and a sensitive layer 215. The conductive layer 214 is made of a known conductive material. The sensitive layer 215 is a mixture of one or both of metal nitrite and metal nitrate when nitrogen dioxide gas or nitrogen monoxide gas is to be detected. When carbon dioxide gas is a detection target, a mixture of one or both of a metal carbonate and a metal bicarbonate is used. Examples of the metal nitrite include lithium nitrite and sodium nitrite. Examples of the metal nitrate include lithium nitrate and sodium nitrate. Examples of the metal carbonate include lithium carbonate and sodium carbonate. Examples of the metal hydrogen carbonate include sodium hydrogen carbonate and potassium hydrogen carbonate. The sensitive layer 215 generates an electrochemical dissociation equilibrium in accordance with a change in the partial pressure of a gas to be detected, and an electromotive force change caused thereby is transmitted to the element 202. The element 202 can detect the surrounding gas by reading such an electromotive force change.

  Next, a cross-sectional structure of the semiconductor device 100 different from the above structure will be described with reference to FIG. The semiconductor device illustrated in FIG. 13 includes a detection element 105, a memory element 107, elements 201, 202, 203, and a conductive layer 204. In FIG. 13, a case where a chemical substance made of an organic compound such as a biological substance is selectively identified will be described.

  The detection element 105 has a structure in which a first layer 251, a second layer 252, and a third layer 253 are arranged in parallel (FIG. 13A). Note that here, a case where the first layer 251 to the third layer 253 are arranged in parallel is shown; however, as described above, the first layer 251 to the third layer 253 may be stacked. Then, the first layer 251 and the third layer 253 may be arranged in parallel, and the second layer 252 may be provided so as to cover the first layer 251 and the third layer 253.

  Further, as the first layer 251 and the third layer 253, known conductive layers are used as in FIGS. As the conductive layer, gold (Au), silver (Ag), platinum (Pt), nickel (Ni), tungsten (W), chromium (Cr), molybdenum (Mo), iron (Fe), cobalt (Co), From one element selected from copper (Cu), palladium (Pd), carbon (C), aluminum (Al), manganese (Mn), titanium (Ti), tantalum (Ta), etc. or an alloy containing a plurality of such elements A single layer or a laminated structure can be used.

  As the second layer 252, a substance (identification element) that selectively reacts with a substance to be detected is provided. For example, an enzyme 266 that selectively reacts with a substance to be detected is fixed on a substrate 265 such as a polymer by using a known means. Then, by bringing blood, sweat, urine, or the like into contact with the second layer 252, only a specific substance contained therein reacts with the second layer 252, and as a result, is detected by the detection element 105. . In addition to the enzyme, various proteins, DNA, antibody molecules, microbial cells, or the like can be immobilized on the substrate 265 according to the substance to be detected.

  Here, the case where there are three types of substances of biological substances 261 to 263 will be briefly described. When the enzyme 266 and the biological material 261 selectively react, the presence / absence or content of the biological material 261 is determined depending on the resistance value or current value between the first layer 251 and the third layer 253. Detected by. More specifically, a chemical substance generated or consumed by a biochemical reaction that occurs between an enzyme 266 that is an identification element immobilized on a substrate 265 such as a polymer and a biological material 261 is converted into the first layer and Detection is performed by measuring with the third layer. On the other hand, the biological materials 262 and 263 are not detected at all because they do not react with the enzyme 266 (FIG. 13B). In this manner, by providing the detection element 105 with an enzyme or the like that reacts with a substance to be detected in the second layer 252, it is possible to know information such as the presence / absence or content of a specific biological substance. In addition, by providing a plurality of detection elements and providing the detection elements with enzymes or the like that react with specific biological substances, it is possible to detect a plurality of biological substances at a time. In FIG. 13, the detection element 105 is configured such that the second layer 252 provided with the identification element is sandwiched between the first layer and the second layer made of a conductive layer. As the element 105, an ISFET (Ion Sensitive Field Effect Transistor) or the like can be used.

  Note that the structures of FIGS. 3, 4, and 13 can be freely combined. That is, a structure in which a position where the conductive layer 204 functioning as the antenna 104 is provided, a position where the memory element 107 is provided and a configuration thereof (passive matrix type or active matrix type), a position where the detection element 105 is provided, or the like can be freely combined. Are all included in the semiconductor device of the present invention.

  In the above structure, the arithmetic processing circuit 101, the detection unit 102, the storage unit 103, and the antenna 104 are provided over the substrate 216, but the present invention is not limited to this structure. A plurality of elements constituting the arithmetic processing circuit 101 or the like may be peeled off from the substrate 216. By peeling a plurality of elements from the substrate 216, size reduction, thickness reduction, and weight reduction can be realized.

  A procedure for peeling a plurality of elements from the substrate 216 will be described with reference to FIG. First, the separation layer 221 and the layer 222 including a plurality of thin film integrated circuits are stacked over the substrate 220 (FIG. 5A). The peeling layer 221 is formed of a material containing an element selected from tungsten, molybdenum, and silicon by a known means (such as a sputtering method or a plasma CVD method). The layer 222 including a plurality of thin film integrated circuits is provided with a plurality of elements constituting the arithmetic processing circuit 101 and the like.

Next, the thin film integrated circuit 223 is peeled from the substrate 220. Here, after an opening is selectively formed in the layer 222 including a plurality of thin film integrated circuits by irradiation with laser light (for example, UV light) and the peeling layer 221 is exposed (FIG. 5B). ), The thin film integrated circuit 223 is peeled from the substrate 220 by using a physical force. Alternatively, after the opening is formed, before the thin film integrated circuit 223 is peeled from the substrate 220, an etching agent may be introduced into the opening and the peeling layer 221 may be removed before peeling. Here, an etching agent is introduced into the opening to remove the separation layer 221 and to divide the layer 222 including a plurality of thin film integrated circuits, thereby forming a plurality of thin film integrated circuits 223. As the etchant, a gas or a liquid containing halogen fluoride, specifically, chlorine trifluoride (ClF ₃ ) may be used. Then, one surface of the thin film integrated circuit 223 is attached to a base 224 (also referred to as a substrate 224), and the thin film integrated circuit 223 is peeled from the substrate 220 (FIG. 5C).

  Next, the other surface of the thin film integrated circuit 223 is bonded to the base 225, and the thin film integrated circuit 223 is sealed with the bases 224 and 225 (FIG. 5D). At this time, when a sealing roll 226 that performs one or both of heat treatment and pressure treatment, a supply roll 227 around which the base 225 is wound, and a belt conveyor 229 are used, the thin film integration sealed in the bases 224 and 225 sequentially. A circuit 223 can be formed. Next, the bases 224 and 225 are cut by the cutting means 228. Then, the thin film integrated circuit 223 sealed with the bases 224 and 225 is completed. The semiconductor device of the present invention includes the thin film integrated circuit 223 sealed in the bases 224 and 225 as described above. The bases 224 and 225 correspond to a substrate (for example, a plastic substrate) made of an organic resin and a film (for example, made of polypropylene, polyester, vinyl, polyvinyl fluoride, vinyl chloride, etc.).

  In addition, when the semiconductor device of the present invention is embedded in a human body, a protective layer 230 is preferably provided so as to cover the bases 224 and 225 so as not to adversely affect the human body. The protective layer 230 is formed of a material that does not adversely affect the human body, and specifically, an insulating material such as silicon oxide, silicon nitride, silicon oxynitride, titanium (Ti), diamond-like carbon (DLC), or carbon nitride. Form with layers. The DLC here includes a hydrogenated amorphous carbon film and the like.

  Next, a procedure for peeling a plurality of elements from the substrate 216, which is different from the above, will be described with reference to FIG. First, the separation layer 221, the layer 222 including a plurality of thin film integrated circuits, and the protective layer 231 are formed over the substrate 220 (FIG. 6A). Next, an opening is selectively formed in the protective layer 231 and the layer 222 including a plurality of thin film integrated circuits to expose the separation layer 221 (FIG. 6B). Subsequently, the layer 222 including a thin film integrated circuit is peeled from the substrate 220 by using the method shown in FIG. Here, an etchant is introduced into an opening provided in the layer 222 including the thin film integrated circuit and the protective film 231 to remove the separation layer 221 and to divide the layer 222 including a plurality of thin film integrated circuits. A plurality of thin film integrated circuits 223 are formed. Next, one surface of the thin film integrated circuit 223 is bonded to the base 224, and the thin film integrated circuit 223 is peeled from the substrate 220 (FIG. 6C). Subsequently, a protective layer 232 is formed on the exposed surface of the thin film integrated circuit 223 (FIG. 6D). Then, the thin film integrated circuit 223 covered with the protective layer 232 is completed. Subsequently, the base 224 is cut by the cutting means 228. Then, the thin film integrated circuit 223 covered with the protective layers 231 and 232 is completed. Depending on the physical quantity or chemical quantity to be detected, a part of the protective layer is selectively removed to provide an opening so that the detection element is exposed.

  The semiconductor device described in this embodiment can detect various physical quantities and chemical quantities, and can display and manage the information on an external device without contact. In addition, since the surface of the semiconductor device of the present invention is covered with a protective layer such as DLC, there is no risk of harmful effects when embedded in a human body.

(Embodiment 2)
In this embodiment, the structure of the detection element described in the above embodiment will be described with reference to drawings.

  FIG. 7 shows an example of a detection unit that detects ambient brightness or the presence or absence of light irradiation. The detection element 708 is formed of a photodiode, a phototransistor, or the like. The detection control circuit 709 includes a detection drive circuit 752, a detection circuit 753, and an A / D conversion circuit 754 (FIG. 7A). Hereinafter, the detection circuit 753 will be described with reference to FIG.

  When the reset TFT 755 is turned on, a reverse bias voltage is applied to the detection element 708. Here, an operation in which the potential of the negative terminal of the detection element 708 is charged to the potential of the power supply voltage is referred to as “reset”. Thereafter, the reset TFT 755 is turned off. At that time, due to the electromotive force of the detection element 708, the potential state changes with time. That is, the potential of the negative terminal of the detection element 708 that has been charged to the potential of the power supply voltage gradually decreases due to the charge generated by the photoelectric conversion.

  When the bias TFT 757 is turned on after a certain time has elapsed, a signal is output to the output side through the amplification TFT 756. In this case, the amplification TFT 756 and the bias TFT 757 operate as a so-called source follower circuit. Here, an example in which the source follower circuit is formed of an n-channel TFT is shown, but it is needless to say that a p-channel TFT can also be formed.

  A power supply voltage Vdd is applied to the amplification side power supply line 758. The bias-side power line 759 is given a reference potential of 0 volts. The drain side terminal of the amplification TFT 756 is connected to the amplification side power supply line, and the source side terminal is connected to the drain terminal of the bias TFT 757. The source side terminal of the bias TFT 757 is connected to the bias side power line 759. A bias voltage Vb is applied to the gate terminal of the bias TFT 757, and a bias current Ib flows through the TFT. The bias TFT 757 basically operates as a constant current source. The input voltage Vin is applied to the gate terminal of the amplifying TFT 756, and the source terminal becomes the output terminal. The input / output relationship of this source follower circuit is Vout = Vin−Vb. This output voltage Vout is converted into a digital signal by the A / D conversion circuit 754. The digital signal is output to the arithmetic processing circuit 703.

  FIG. 8 shows an example in which an element for detecting capacitance is provided in the detection element. The element for detecting the capacitance includes a pair of electrodes. An object to be detected such as a liquid or a gas is filled between the electrodes. By detecting a change in capacitance between the pair of electrodes, for example, the state of the contents sealed in the container is determined. Further, it is possible to detect a change in humidity by interposing a polyimide, acrylic or other hygroscopic dielectric material between a pair of electrodes and reading a minute change in electric resistance.

  The detection control circuit 709 has the following configuration. The oscillation circuit 760 generates a measurement reference signal and inputs the signal to the electrode of the detection element 708. The voltage at this time is also input to the voltage detection circuit 761. The reference signal detected by the voltage detection circuit 761 is converted into a voltage signal indicating an effective value by the conversion circuit 763. The current flowing between the electrodes of the detection element 708 is detected by the current detection circuit 762. The signal detected by the current detection circuit 762 is converted into a current signal indicating an effective value by the conversion circuit 764. The arithmetic circuit 766 calculates electric parameters such as impedance or admittance by performing arithmetic processing on the voltage signal output from the conversion circuit 763 and the current signal output from the conversion circuit 764. The output of the voltage detection circuit 761 and the output of the current detection circuit 762 are input to the phase comparison circuit 765. The phase comparison circuit 765 outputs the phase difference between the two signals to the arithmetic circuit 767. The arithmetic circuit 767 calculates the capacitance using the output signals of the arithmetic circuit 766 and the phase comparison circuit 765. Then, the signal is output to the arithmetic processing circuit 703.

  FIG. 14 and FIG. 15 show an equivalent circuit of a detection element for detecting temperature and its operation.

  First, the case where an element including a layer containing an organic compound between a pair of conductive layers is used as a detection element for detecting temperature will be described with reference to FIG.

  A detection element 971 that detects temperature and a constant current source 972 are connected in series, and one terminal of the detection element 971 is connected to a high-potential power supply and is kept at a constant potential (VDD). One terminal of the constant current source 972 is connected to a low potential power source and is kept at a constant potential (VSS) (FIG. 14A). The detection element 971 has a property that the resistance value changes depending on the ambient temperature. Specifically, when the room temperature is set to a normal temperature, the resistance value decreases when the temperature is higher than normal, and the temperature is lower than normal. As the value decreases, the resistance value increases. Such a property of the detection element 971 is as shown in the graph (B) of FIG. 14B showing the relationship between the voltage-current characteristic of the detection element 971 and the temperature.

  A constant current is supplied to the detection element 971 from the constant current source 972. When the ambient temperature changes in this state, the resistance value of the detection element 971 changes. As the resistance value of the detection element 971 changes, the potential (Va) of the other node of the detection element 971 changes. By reading the potential Va of the other node of the detection element 971 as described above, the ambient temperature can be detected.

  Next, the case where one or a plurality of transistors is used as a detection element for detecting temperature will be described with reference to FIG.

  A detection element 973 including one or a plurality of transistors and a constant current source 974 are connected in series, and one terminal of the detection element 973 is connected to a high potential power source and is kept at a constant potential (VDD). (FIG. 15A). One terminal of the constant current source 974 is connected to a low-potential power supply and is kept at a constant potential (VSS).

  The detection element 973 has a property that the resistance value changes depending on the ambient temperature, and the potential (Vb) of the other node of the detection element 973 changes as the resistance value of the detection element 973 changes. The ambient temperature can be detected by reading the potential Vb of the other node of the detection element 973. The potential Vb of the node of the detection element 973 and the temperature have a substantially linear relationship (FIG. 15B).

  Note that the detection element 973 includes one transistor 975, two transistors 976 and 977, three transistors 978 to 980, and any of them may be employed in the present invention ( FIGS. 15C to 15E).

  In the case where a transistor is used as a detection element for detecting temperature, it is preferable that the transistor in the detection element and the transistor in the detection control circuit, the arithmetic processing circuit, or the like are provided with different structures. The transistor in the detection element has a structure in which the characteristics of the transistor are likely to change due to a temperature change, and the characteristics of the transistors used in other circuits such as the detection control circuit and the arithmetic processing circuit change even when the temperature changes. Use a difficult structure. Specifically, the temperature change is increased by increasing the channel length of the semiconductor film (the length of the semiconductor film between the source region and the drain region) in the transistor such as the detection control circuit or the arithmetic processing circuit as compared with the transistor in the detection element. Can be reduced. In addition, by changing the channel width (the direction perpendicular to the channel length) of the transistor, it is possible to reduce the influence on the temperature change.

  Next, a flowchart for explaining an example of the operation of the reader / writer 112 and the semiconductor device 100 is shown in FIG.

  The reader / writer 112 transmits control signals such as a detection start signal, a data read signal, and a data write signal. The semiconductor device 100 receives the control signal. The semiconductor device 100 identifies a control signal with an arithmetic processing circuit. Then, it is determined which operation to perform from the operation of operating the detection unit to measure data and recording to the storage unit, the operation of reading the data recorded in the storage unit, and the operation of writing data to the storage unit . In the operation of measuring data and recording in the storage unit, first, the detection control circuit is operated, the signal of the detection element is read, binarization is performed through the detection control circuit, and the storage unit is connected through the arithmetic processing circuit. Do the work to be recorded. In the operation of writing data from the reader / writer 112, the data transmitted from the reader / writer 112 is written to the storage unit. In the operation of reading the data recorded in the storage unit, the control circuit is operated, the data of the storage element is read, and the operation of transmitting it to the reader / writer 112 is performed. The power necessary for the operation of the circuit is assumed to be performed simultaneously with the signal transmission or at any time.

  Next, a system for transmitting / receiving data detected by a detection element provided in a semiconductor device to / from a reader / writer will be described with reference to FIG. FIG. 10 illustrates an example of the above-described semiconductor device 100 and the reader / writer 112 that transmits / receives information of the semiconductor device 100. The reader / writer 112 includes an antenna 904, a transmitter 921, a demodulation circuit 910, and a modulation circuit 911. In addition, an arithmetic processing circuit 901 and an external interface unit 923 are provided. In order to encrypt and transmit the control signal, the reader / writer 112 may be provided with the encryption / decryption circuit unit 922 and the storage unit 903. The power supply circuit unit 909 supplies power to each circuit, and supplies power supplied from the external power supply 924 to each circuit.

  Information detected by the detection unit 102 of the semiconductor device 100 is processed by the arithmetic processing circuit 101 and then held in the storage unit 103. A signal transmitted as an electromagnetic wave via the modulation circuit 911 of the reader / writer 112 is converted into an AC electrical signal by electromagnetic induction in the antenna 104 of the semiconductor device 100. The demodulation circuit 110 demodulates the alternating electrical signal and transmits it to the subsequent arithmetic processing circuit 101. The arithmetic processing circuit 101 calls the data held in the storage unit 103 in accordance with the input signal. Then, a signal is sent from the arithmetic processing circuit 101 to the modulation circuit 111, and modulated by the modulation circuit 111 into an AC electrical signal. Then, the AC electrical signal is transmitted to the antenna 904 of the reader / writer 112 via the antenna 104.

  The AC electrical signal received by the antenna 904 of the reader / writer 112 is demodulated by the demodulation circuit 910 and transmitted to the arithmetic processing circuit 901 and the external interface unit 923 at the subsequent stage. The data detected by the detection unit 102 is displayed on an information processing device 925 such as a display or a computer connected to the external interface unit 923.

  Note that this embodiment mode can be freely combined with the above embodiment modes.

(Embodiment 3)
The semiconductor device of the present invention can detect various physical quantities or chemical quantities as described in the above embodiments. For this reason, it is possible to easily know various information such as biological information and health status by bringing a human or an animal with the above-described semiconductor device. In addition, as a method for carrying a semiconductor device, for example, a method of being attached to the surface of a body or a method of being embedded in a human body can be considered as an example of human beings. An individual may select and provide it. Specific examples of usage patterns of the semiconductor device of the present invention will be described below with reference to the drawings.

  A semiconductor device 502 including an element for detecting temperature is embedded in an animal 501, and a reader / writer 503 is provided in a food box or the like provided in the vicinity of the animal 501 (FIG. 11A). Then, the health condition of the animal 501 can be monitored and managed by periodically reading information such as the body temperature of the animal 501 detected by the semiconductor device 502 using the reader / writer 503. In this case, a plurality of animals can be managed simultaneously by storing the identification number in the semiconductor device 502 in advance. In particular, when the semiconductor device 502 is embedded in the animal 501, it is preferable to provide the semiconductor device 502 so that the size is reduced by forming the semiconductor device 502 using a TFT or the like. Further, as described in the above embodiment mode, by providing the semiconductor device 502 so as to have flexibility (flexibility), even when stress is applied to the embedded semiconductor device, Breakage can be prevented.

  In addition, a semiconductor device 506 including an element for detecting a gas component such as gas is provided in the food 505, and a reader / writer 507 is provided on a wrapping paper or a display shelf (FIG. 11B). The freshness of the food 505 can be managed by periodically reading information detected by the semiconductor device 506 using the reader / writer 507.

  In addition, a semiconductor device 512 including an element for detecting light is provided in the plant 511, and a reader / writer 513 is provided in a flower pot or the like of the plant 511 (FIG. 11C). Then, by using the reader / writer 513 to periodically read information detected by the semiconductor device 512, it is possible to obtain information on the sunshine time and accurately predict information on the flowering time and the shipping time of the flower. it can. In particular, in the semiconductor device 512 including an element for detecting light, by simultaneously providing a solar cell, power is supplied to the semiconductor device 512 by light from the outside in addition to power supply by electromagnetic waves from the reader / writer 513. It becomes possible. The solar cell may be provided in combination with the detection element, or may be provided separately from the detection element.

  In addition, a semiconductor device 515 including an element for detecting pressure is attached to or embedded in the arm of a human body (FIG. 11D). When information detected by the semiconductor device 515 is read using a reader / writer, information such as blood pressure and pulse can be obtained. In particular, in the case where the semiconductor device 515 is provided by being attached to or embedded in a human body, the semiconductor device 515 is preferably provided so that the size is reduced by forming the semiconductor device 515 using a TFT or the like. In addition, as shown in the above embodiment mode, when the semiconductor device 515 is provided with flexibility (flexibility), stress is applied to the semiconductor device which is attached or embedded. Even if it exists, damage to the semiconductor device can be prevented.

  Further, a semiconductor device 516 including an element for detecting temperature is embedded in the earlobe (FIG. 11E). Then, information on the body temperature can be obtained by reading information detected by the semiconductor device 516 using a reader / writer.

  Moreover, the body temperature measured in the state of rest is called basal body temperature, and this basal body temperature has a certain rhythm, and it is possible to grasp one's own physical condition from the measurement result. The basal body temperature must be measured as it is when it is awake, preferably 5 minutes under the tongue in the mouth. That is, in order to measure the basal body temperature, the basal body thermometer is kept in a clean state and is measured every day by putting it in the mouth. However, if the semiconductor device 517 of the present invention is embedded in the tongue or the like, it is not necessary to use a basal thermometer, and the body temperature can be measured by holding the reader / writer over the mouth every day (FIG. 11E). .

  Further, a semiconductor device 518 including an element for detecting pressure is provided by being attached or embedded under the nose (FIG. 11E). If information detected by the semiconductor device 518 is read using a reader / writer, information on the presence or absence of breathing can be obtained. This is particularly effective when it is desired to know the status of many patients in a hospital or the like.

  In addition, a semiconductor device 522 including an element for detecting vibration is provided by being attached or embedded in a throat (FIG. 11E). If information detected by the semiconductor device 522 is read by a reader / writer, information on the presence or absence of vocal cord vibration in the throat can be obtained. This is particularly effective in the case where an intention to speak is shown by detecting the vibration of the vocal cords even when the voice cannot be produced due to illness or the like.

  In addition, a semiconductor device 519 including a detection element for detecting ultraviolet light is provided or embedded in a portion where light is transmitted (FIG. 11F). Then, without carrying a dedicated sensor, ultraviolet light can be measured by holding the reader / writer over the semiconductor device 519 at a desired place when necessary. Ultraviolet rays cannot be detected by humans, have harmful effects on the skin and eyes, and reduce immunity. If ultraviolet rays can be measured, take immediate self-defense measures. Can do.

  In addition to the above, the heart rate may be measured by attaching a semiconductor device 520 including an element for detecting pressure in the vicinity of the heart. As described above, the semiconductor device of the present invention can be used for human health management and disease prevention prediction. Further, by obtaining biological information read by a reader / writer using a network such as the Internet, the semiconductor device of the present invention can be used in a home medical monitoring system and the like. A specific example is shown in FIG.

  The individual 551 carries a semiconductor device 552 capable of detecting physical quantities and chemical quantities. As shown in FIG. 11, the semiconductor device 552 may be provided by being attached to a human body or may be provided by being embedded, or the individual 551 may be appropriately selected and provided. In addition, since there are individual differences in blood, pulse, and the like, a semiconductor device 552 that matches the individual 551 is provided. In this manner, by bringing the semiconductor device 552 into the individual 551, the biological information of the individual 551 detected by the semiconductor device 552 can be read by the reader / writer 553 and displayed on the display unit 555 of the device 554 such as a computer. . Furthermore, the read biological information can be transmitted from the home 550 to the medical institution 560 in real time by using a network such as the Internet.

  The medical institution 560 monitors and manages information on the individual 551 by receiving the transmitted data with a device 561 such as a computer. The doctor / specialist in charge of the individual 551 can diagnose the individual 551 based on the transmitted information.

  As described above, since a change in physical quantity or chemical quantity related to the health state of the individual 551 is periodically detected and transmitted to the medical institution 560, the medical institution 560 monitors the health state of the individual 551 while at home 550. It becomes possible. Therefore, when an abnormality is recognized in the individual 551, a doctor can be dispatched quickly to perform a precise examination.

  In addition, when the individual 551 always carries the semiconductor device 552, the health state of the individual 551 can be constantly grasped even when the user is away by installing a reader / writer on an information device such as a mobile phone. . When an abnormality is recognized in the individual 551, the medical institution 560 that manages the biological information of the individual 551 and the medical institution 570 in the vicinity of the individual 551 exchange information, thereby quickly locating the individual 551. A doctor can be dispatched and treated. This is particularly effective when an abnormality is recognized at a place other than the home when the individual 551 is out.

  In addition, by periodically managing the biological information of the individual 551 as described above, it is possible to improve what is lacking in the individual 551. For example, by managing and analyzing the biological information of the individual 551 by a device 554 such as a computer, if there is a deficient vitamin in the current individual 551, this is displayed on the display unit 555 to call attention. It is also possible to display the ingredients to be taken together.

  As described above, by always having the semiconductor device 552 of the present invention carried by an individual, it is possible to grasp not only the health status of the individual but also a medical institution and prevent illness and the like in advance. Even in the event of an unexpected illness or accident, we can take the best action quickly.

  Note that this embodiment mode can be freely combined with the above embodiment modes.

FIG. 11 illustrates an example of a semiconductor device of the invention. FIG. 11 illustrates an example of a semiconductor device of the invention. FIG. 11 illustrates an example of a semiconductor device of the invention. FIG. 11 illustrates an example of a semiconductor device of the invention. FIG. 11 illustrates an example of a semiconductor device of the invention. FIG. 11 illustrates an example of a semiconductor device of the invention. FIG. 11 illustrates an example of a semiconductor device of the invention. FIG. 11 illustrates an example of a semiconductor device of the invention. FIG. 11 illustrates an example of a semiconductor device of the invention. FIG. 11 illustrates an example of a semiconductor device of the invention. FIG. 13 illustrates an example of a usage pattern of a semiconductor device of the invention. FIG. 13 illustrates an example of a usage pattern of a semiconductor device of the invention. FIG. 11 illustrates an example of a semiconductor device of the invention. FIG. 11 illustrates an example of a semiconductor device of the invention. FIG. 11 illustrates an example of a semiconductor device of the invention.

Explanation of symbols

100 Semiconductor Device 101 Arithmetic Processing Circuit 102 Detection Unit 103 Storage Unit 104 Antenna 105 Detection Element 106 Detection Control Circuit 107 Storage Element 108 Control Circuit 109 Power Supply Circuit 110 Demodulation Circuit 111 Modulation Circuit 112 Reader / Writer 113 Battery 201 Element 202 Element 203 Element 204 Conductive layer 205 First layer 206 Second layer 207 Third layer 208 Conductive layer 209 Layer 210 containing organic compound Conductive layer 211 Conductive layer 212 Moisture sensitive layer 213 Conductive layer 214 Conductive layer 215 Sensitive layer 216 Substrate 217 Conductive layer 218 layer containing organic compound 219 conductive layer 220 substrate 221 release layer 222 layer 223 containing multiple thin film integrated circuits thin film integrated circuit 224 base 225 base 226 sealing roll 227 supply roll 228 cutting means 229 belt conveyor 230 protective layer 231 Layer 232 Protective layer 240 Thin film integrated circuit 241 Conductive layer 251 First layer 252 Second layer 253 Third layer 261 Biological material 262 Biological material 263 Biological material 265 Base 266 Enzyme 501 Animal 502 Semiconductor device 503 Reader / Writer 505 Food 506 Semiconductor device 507 Reader / writer 511 Plant 512 Semiconductor device 513 Reader / writer 514 Semiconductor device 515 Semiconductor device 516 Semiconductor device 517 Semiconductor device 518 Semiconductor device 519 Semiconductor device 520 Semiconductor device 522 Semiconductor device 550 Home 551 Individual 552 Semiconductor device 553 Reader / Writer 554 Device 555 Display unit 560 Medical institution 561 Device 570 Medical institution 703 Calculation processing circuit 708 Detection element 709 Detection control circuit 752 Detection drive circuit 753 Detection circuit 754 A / D conversion circuit 75 Reset TFT
756 TFT for amplification
757 TFT for bias
758 Amplification side power supply line 759 Bias side power supply line 760 Transmission circuit 761 Voltage detection circuit 762 Current detection circuit 763 Conversion circuit 764 Conversion circuit 765 Phase comparison circuit 766 Operation circuit 767 Operation circuit 901 Operation processing circuit 903 Storage unit 904 Antenna 909 Power supply circuit unit 910 Demodulation circuit 911 Modulation circuit 922 Encryption / combination circuit unit 923 External interface unit 924 External power supply 925 Information processing device 971 Detection element 972 Constant current source 973 Detection element 974 Constant current source 975 Transistor 976 Transistor 977 Transistor 978 Transistor 979 Transistor 980 Transistor

Claims (15)

An element having at least a first transistor, a second transistor, and a third transistor provided over a substrate;
A sensing element electrically connected to the first transistor and provided on the element;
A memory element electrically connected to the second transistor and provided on the element;
A conductive layer electrically connected to the third transistor and functioning as an antenna provided on the element;
The semiconductor device, wherein the substrate, the element, the detection element, the memory element, and the conductive layer functioning as the antenna are covered with a protective layer. An element having at least a first transistor, a second transistor, and a third transistor provided over a substrate;
A sensing element electrically connected to the first transistor and provided on the element;
A memory element electrically connected to the second transistor and provided on the element;
A conductive layer electrically connected to the third transistor and functioning as an antenna provided on the element;
The memory element has a stacked structure of a first conductive layer, an organic compound layer, and a second conductive layer formed on the element,
The semiconductor device, wherein the substrate, the element, the detection element, the memory element, and the conductive layer functioning as the antenna are covered with a protective layer. In claim 2,
The semiconductor device, wherein the first conductive layer and the conductive layer functioning as the antenna are provided in the same layer. In any one of Claims 1 thru | or 3,
The detection element has a stacked structure of a first layer, a second layer, and a third layer,
Either one of the first layer and the third layer is a P-type semiconductor layer and the other is an N-type semiconductor layer,
The semiconductor device, wherein the second layer is an I-type semiconductor layer. In any one of Claims 1 thru | or 3,
The detection element has a stacked structure of a first layer, a second layer, and a third layer,
The first layer is a conductive layer;
The second layer is a compound semiconductor layer;
The semiconductor device, wherein the third layer is a conductive layer. In any one of Claim 3 thru | or 5,
The detection element has a laminated structure including a first layer, a second layer, and a third layer,
The first layer and the third layer are conductive layers;
The semiconductor device, wherein the second layer is a piezoelectric layer. In any one of Claim 3 thru | or 5,
The detection element has a laminated structure of the first layer, the second layer, and the third layer, or a structure in which the first layer, the second layer, and the third layer are arranged or connected in parallel. Have
The first layer and the third layer are conductive layers;
The semiconductor device, wherein the second layer is a wet and dry layer. In any one of Claim 3 thru | or 5,
The detection element has a laminated structure of the first layer, the second layer, and the third layer, or a structure in which the first layer, the second layer, and the third layer are arranged or connected in parallel. Have
The first layer and the third layer are conductive layers;
The semiconductor device, wherein the second layer is an organic compound layer. In any one of Claim 3 thru | or 5,
The detection element has a laminated structure including a first layer and a second layer,
The first layer is a conductive layer;
The semiconductor device, wherein the second layer is a sensitive layer. In any one of Claim 3 thru | or 5,
The detection element has a laminated structure of the first layer, the second layer, and the third layer, or a structure in which the first layer, the second layer, and the third layer are arranged or connected in parallel. Have
The first layer and the third layer are conductive layers;
The semiconductor device according to claim 2, wherein the second layer is a layer in which an enzyme, protein, DNA, antibody molecule, or microbial cell is immobilized on a substrate. In claim 10,
The semiconductor device, wherein the substrate is a polymer film. In any one of Claims 5 to 11,
The semiconductor device, wherein the first layer and the conductive layer functioning as the antenna are provided in the same layer. In any one of Claims 5 to 12,
The semiconductor device, wherein the first layer and the first conductive layer are provided in the same layer. In any one of Claims 1 thru / or Claim 13,
The semiconductor device, wherein the protective layer contains silicon oxide, silicon nitride, silicon oxynitride, diamond-like carbon, or carbon nitride. In any one of Claims 3-14,
The semiconductor device is characterized in that the substrate is a glass substrate or a flexible substrate.

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